Automatic magazine-firearm.



Patented Feb. 2

.4 SHEETS-SHEBT'L I A if. Y .,r....... A 21.... ...s

Patented Feb. 2, 191.5A

4 SHEETS-SHEET 2 P. A. DIESTBLKAMP. AUTOMATIC MAGAZINE FIRBARM.

APPMGATION FILED 00116, 1913.

f QQ@ f mw y F. A. DIESTELKAMP..

AUTOMATIC MAGAZINE FIREARM. AYPLIGATION FILED 0016, 191s.

Patented Feb. 2, 1915.

FIA. DIESTELKAMP. AUTOMATIC MAGAZINE FIREARM. APPLIGATIQN FILED UGT. 6.191,3.

Patented Feb. 2, 1915.

4 SHEETS-SHEET 4. 4'

3, un a n z o 35 l 'causegtheiollower tolmoreupy'a'dWithin athemagazineVchamber and positively vfeed a new. and useful Improvementlin--Automatie MagazinefFirearms, 'of which the following- To whom .itmay concern:

lUNIT6E@sin :aannemen n, DIESTLKAM'P; or'I umn-missouri.

Avremmo p Be itknown that I, FREDERICK A,

KAMP, vcitizen of the United States, residing Lat. Bland, in .thefcountyof Gasconade andI State of Missouri, hare 'invented certain is aspecification'.

My invention relates to'rear'ms and parjticularly .to automaticfirearms.

' The pri mary objectof .my invention is the 'provision ofa'magazineVfirearm wherein" positive meansShall be provided 'l for 'shift ing, themagazine.. followerupivard; tol-feed.

the cartridges' one by one into thereceiver. .y A .further objectoftheinyentioninthis -connection is tojproxjide means whereby. to

indicate to the user the Anumber ofv cartridges remaining inthemagazine..

pro-vision' of means whereby theloreecl'iY block' may befd'raw'nfbackbyhand to cock'fgthe'. hammer incase-'of a .misire or to -return'the-.part-s' to firing` position an'd operate tl1e`- rile. A further object:of the invention is to proj' vide aiirearm-hani'nga' magazine and lafol- I `lowerv with a' flexible follower operating band or chaii'rgv andto proyi de means for taking'up thisY band apredet'ermined distance Afurther ob'ect vin.`th. isl connectionwis 'to acting yto v return. thefollower actuating. and-'toits' normal pojsfitlcin y Q .jandf-thereanendof the .forearm is invuponV each' dischargeof thefgnn to therebycartridge into the receiver.-

lprovide.y a i sprin fhasf-bemgfed @seeth/@ vbleach to' permitirle"whereby the loreec'hhlockA may be locked in.i

return of the-follementeitsY normal position and t'opermit. the magazine4be filled'againv Withcartridges. K

Still another Objectis to providefmeans ,further Yolijiect of theinvention 'the'v ally operated-:means .for .opening the of; a'

the magazine when desired.

A een; further' Objet@ enden@ f the min' objects," is l to provide 1.abreech block 'that will'flo'ck behind the barrelandsogive vthe :YVprojectile ltime teclear `the barrel -whil'e the' blockis"un'l0cking,1and While theharrelref mainsperfectly stationary. 5 Myinvention is illustrated in theaccompanying dra-wings, Wher'einr-fe v:Flgure 1 1s a Vperspective View oa, firearm constructed "in accordancewith my inven-x tion; j FigfQ. i/s an. enlarged' vertical y sectionthrongh the firearm, `this section being taken .on theihne 2-2 of.Fig. 4Fig. 3 is a section' on the 11ne33 of 2 Fig. 4 is .section j tn dinal,section on the line; 5 -55 of Fig.' 2;' 1T-ig. 6, 1s a section. on theline `6-6 of Fig. 2 Fig.- `7 is a perspective View of; themechanism-for. operatinghe loading door 'Fig-ix' d lOis` a perspectiveView of the .breechbolt and, of `the firing pin.y separated therefrom;Fig-1111s aQperspectiVe View of the breech liloclrand the mechanism formanuallyrretivfejview of thcpaiil release mechanism;

' Corresponding f and ,like partsare referred 'to in the' followingdescription-and indi?` catedjin' all the views oflthefaccompanyingdrzmmgsv by the vsame Vreference characters,

fsertedwithin a` socket. inthe. receiver, the f orxyjard- 'endbeing heldtothe barrel in any suitable mannen," Thejstock-.is .held'to the4'receiver by meansfof upper. and lower tangs.l The receiverllis Ahollowto 1 contain the .firing and cartridge feeding mechanism, and formingpart ofthe receiver `is the magazine .6'

i-nwrbi'ch thecartridges.,rI are disposed one ontop. ofjthecther. Aswill be seen in Fig'. fl'. the lower portion of thereceiverisdivirfled'into `two 'part by'lneans of a vertical .wall 7,thel cartridges a beingcontained isa perspective View of the mechanism'for 1 operating the loading doorl and'for locking. the trigger; Fig. 9is a perspective 'View of' the cartridge feeding Wheelsor. rollers; F

Referring. tel41 ig. 1 it willy be seenthat'my .im l

' the bore of the barrel.

l receiver and normally immediately behind and Aabutting against therear end of the barrel. 2, is a 'cylindrical hollow. breech block, anddisposed within the interior of thisgbreech block 9 and normallyprojecting therefrom is a piston constituting a breech bolt' iiddesignated 10.

l* This piston has the lia'pe illustrated in Fig. 10. The forwardlportion of the breech bolt 101has a diameter equal. to that of thecartridge chamber 11 formed by the rear portion of The rear portion ofthe breech bolt is reduced in diameter so as to pass through aperforation 12 formed in therear end of the breech block, while adjacentits head the. breech bolt is enlarged asvat 13 and formed withrelatively heavy screw threads which coact with relatively heavy screwlthreads 14 form din the interior of the forward portion of t e breechblock. A spring 15 surroundsthe ear portion of the breech briltfand isdis osed between the perforated end of the cylindrical breech block 9andthe head 13 so that nor- .nally the 4breech'bol orced forward so asto abut against th' lrtridge a in the .manner shown in Fig.- 2.' Theforward end of the breech bolt is formed with resilient hooks 16 adaptedto engage over'the rim if al cartridge as` illustrated clearly in Fig.10. The breech bolt is tubular, and disposed within the breech boltA isthe firing Jin'17 which projects out through the rear.

ond of the breech bolt andis formed with a head 18.. Disposed betweenthis head '18 `51`hiforward end of the cylindrical breech block 9 asillustrated clearlyin-Fig. 11 is provided with af plurality 4of radiallydirected locking lugs 21. There are four of these lugs illustrated,shown as arranged in' quartering relation. 'of the receiver justrearward .of its polnt of attachment'to the barrel isalso provided onits interior with four radially projecting,

inwardlyV extending locking lugs 22 shown. clearly in Fig. 4. Normallythe lugs 21 are disposed in registry with the lugs 22 and prevent 4anyrearward movement of the breech block. lll/*hen7 however, the breechbolt or piston 10 is.l forced rearward by the firing of a cartridge, thescrew threads 13 engage the screw threads 14 and this causes a rotationof the lbreech' block through -an eighth-cfa revolutionuntil the lugs 21escape Vfrom registry with the lugs 22, whereupon the cylindrical breechblock will move.

The forward end rearward togetherwith thebreech bolt in cally stated.

For the purpose of preventing any rotation of the breech'bolt 10, Iprovide the head 19 with laterally extending wings 23 as` shown clearlyin Figs. 5 and 10, these wings engaging in guide grooves 24 exa mannerto be hereafter and more 'specifitending longitudinally of the receiver,and.

for thepurpose of urging the breech bolt and the breech block forward, Tprovide the springs 25 disposed/one en each side of of the rearwardmoving breech block and breech bolt has been sufficiently reduced, thesprings 25 will act to return the parts to their initial position.

Mounted within the receiver at the rear end thereof and extending upwardand forward therein, and projecting at its rear end partially into lthestock, is the hammerl 27 This consists of a straight rod as shownin Fig,8 which impinges against the downw wardly and forwardly beveled face ofthe head 18 and whlch -is surrounded by a coil spring 28 bearing at oneend against the .flanged en'dfof a sleeve 29 andat its other end againstuau collar 30 formed upon the hammer. This collar as illustrated in Fig.8 isl provided with the downwardly and forwardly projecting lug or tooth31 for engagement with a sear as will be later stated. The trigger is4mounted within the trigger plate 32 which forms part ofthe receiver,though it may be a separate piece. This trigger plate is slotted at 33for the' down-V ward prolongation or finger piece 34 of the trigger 35.The trigger 35 is pivoted upon a pivot pin 36 mounted in bearingsv onthe trigger plate. As shown in Fig. 8, the trigger has a rearwardextension 39, to which is'pivoted an upwardandrearwardly eX- tendinglink 40.- This link at is upper fend ispivot'ally connected to a sear41Vin turn rotatably mounted upon a bracket `42 mounted within thereceiver. This bracket 42 extends upward soas tosupport the sear 41adjacent to the line of travel of the tooth 31I on collar 30. Theforward vend-of the sear is formed .with a hook 43 adapted to engageover the tooth 31 as illustrated clearlyin 8.- A spring 44 tends toforce the rear' endv of the trigger downward and this,'o`f course, willforce the forward end of the sear upward. The forward end of this searforward ofthe hook 43 is rounded or beveled. The trigger is also formedwith a -fiorward prolongation i5 whose lower face :s slightly elevatedabove the pivotal center of the trigger for a purpose which will belater described.

- the force o' the spring QS. .This downward and rearward movement ofthe hammer will continue until the breech block and bolt with the rearend of breech block and .breech bolt, and at this-point the tooth 3lwill slip into' engagement. with the hook -l and the parts will assumethe position shown in Fig. 2. The hammer is then cocked and it will beobvious that upon a pull be ing given to the trigger, the forward end ofthe sear will be depressed,.thus releasing the hammer. The hammer willspring 'tor- Qv'vard under the impetus of the spring 2S and impingingupon the firing pin will force the firing pin forward to explode theCartridge.' AAs soon as the pressure of the finger upon the trigger hasbeen released, the spring will act to return the triggerv @to its normalposition with the hook 43 1n vthe path of movement of the tooth 31. I-also provide means whereby the hammer @aan be cocked by hand in case ofmisfire but 'this will be later described.

:The mechanism for feeding' cartridges from the magazine 6 consists of a'follower 46 normally disposed, when the magazine full, at the .lowerend of the magazine but 'movable upwardly between the walls T and Stofeed the cartridges one by one into the receiver. Disposed forward ofthe magazine in a chamber -l is a shaft S and surroundingV theshaft is aconvolute spring i9 which Iisboperatively connected to one end of aflexible chain or band 5.0. This chain passes vfrom the compartment libeneath a roller parallel to the rear wall of the magazine and overafroller 53 mounted upon the upper end of this" rear wall. 'The flexibleconnection is connected to the follower by means of 4an inwardlyextendingscrew or pin 5 and a guide block 55 which is attached to oneendof the'follower. lThis guide block enovesin guide grooves 56 formed inthe opposite walls of a slot 57 which extends upward- 'hrough the 'rearwall of the magazine'. It

, from the wall of the receiver.

`cartridge into the receiver.

Will be obvious now that .by drawin the flexible connection rearward,the sli e or block will be raised and this Will cause the follower to beraised and elevate the cartridges a.

For the purpose of automatically winding up the flexible connection 50and thereby raising the Vfollower 46 I; provide the winding wheel 5Sillustrated in detail in Fig. 9. This winding wheel, roller or drum 58is mounted upon a shaft 59 which is rotatably mounted in suitablebearings formed in the receiver, this shaft also carrying upon it thetoothed wheel 60 Aas illustrated in Fig. 9. At one point 1n itscircumference the winding roller or drum 5S is formed with an upwardlyprojecting lug 61 through which passes a rod 62 which is operatively4connected to the re'ar end of the flexible connection,50, preferably bymeans of a spring 63, there being a nut on the 'end .of the rod wherebyvthe tension ofthe spring may be regulated. The.wheel or roller 58 isalso provided with the radially extending stop lug 64 which when themagazine is full bears against a' stop shoulder 65 projecting Asillustrated, the wheel 5S upon its left handfece is provided with aplurality of numerals disposed equidistantly and/running as illustratedfrom l to 8, it being of course understood, however. that there may be agreater .number of these numerals or less depending 4upon the number orcartridges held 1n thev magazine. As illustrated, there are sevencartridges in-the magazine and one in the bar-rel and eight numerals,thenumeral l being located adjacent to the lug GL The side wall of thereceiver is formed with a perforation 3a, (seen in Fig. l) through whichthese numerals may be read, this perforation being so located that whenthe magazine is full and has, for instance, seven cartridges therein,the numeral S will show, while whenthe magazine has only one cartridgetherein, the numeral 2 will A'be displayed. Forth@ purpose of shiftingthe wheel 5S a predetermined distance upon each opening of the breech. lpivotallymount upon the breech block 91 the downwardly andrearwardlyextending pawl 65 as seen clearly in Fig. This pawl is held inits.. engaging position by means of a spring 66. llpon asufficient'rearward movement 0I the breech block 9 to fall?.v open thebreech, the pawl G5" engages with oneof the teeth 60 upon the wheel G0and this engagement'- will ot course cause the wheel GO to rotate,rotating the shaft 59 and thewheel 58 a dis` tance .suiicient to wind upa certain length of the flexible connection 50 and-so force a l'l'polnareturn movement of the breech block, the pawl wilhg-of course, yield andescape theteeth 605.] The-Wheel-GQ is' held from any'reverse rotation bymeans of a hook-shaped pawl .67 pivotally mounted upon a pivotpin 68ex-v .l vtending Afrom the wall of the receiyelg; the

upper end of the pawl being hook-shaped lto engage over the teeth a. lTheupp'er end f ofthe pawl is yieldingly forced 'inward' by lmeans of aspring 69 surrounding the pin 70 .bearing against the pawl as Shown inFig. 2.-

he. lower end of thepawl is formed with a forwardly and laterallypfojbft.

-arm 71 (seeFig. 7).'

The ejecting mechanism whereby the empty shell Ais ejected from 'thereceiver is illustrated most clearly inFig. 2 and' is also illustratedin `Fig. 4.' As will .be seen from Fig. 4, the receiver isdivided intotwo `compartments by the vertical wall 7, one of these compartments'forming the magazine .while the other compartment '7EL forms anejecting chamben Mounted upon theupper end of the wall 7 is a magazinegate 7 2 which is normally held over the vuppermost carJ tridge. Whenthe uppermost cartridge is dischargedintothe receiver this door 72 willopen, but immediately upon the passage of the cartridge into thereceiver the 'door will swing back 'into the position shown in Fig. 4.Pvotally mounted yupon the upper wall ofthe lreceiver is a bellcranklever 73 having a long arm and-a short arm. The long arm normallyextends forwardand isdesignated 74 while 'the short arm extends nor#mally downwardfand is connected .to a rpd l-75 which extends rearwardand in turn is connectedto a lever 76 forming a nger.- Thisleverispivoted as at '7 7 to the upper wall of the receiver, and a spring 78resiliently urges the lower end of the finger forward. This finger isdisposed inthe path of Increment ofthe 'breech block 9 Aso 'that whenthis breech block' is forced back by the recoil of the discharging'cartridge, it'will contact with the lower end of the finger'-G, shift itrearward, pull rearward' 'upon .the rod 75 and throw the long arm ofthebell crank lever 74 'downward into the receiver and against the explodedshell held upon the breech boltlO b v the yspring clip 16. The

lougarm 74. of thisejector lever will, there' l fore, force the emptyshell out .of its en.- gagen'ient'with the springclip 16 and cause thisshell .to drop into the ejecting chamber 7@ and 'be discharged from thelower end thereof ontothe ground.. It will be noted that the shell isnot discharged laterally so that it will Hy in alldirections but thatit.

m ovement.

locking vthe trigFger, 1 provide the mechanism illustrated in' ig.8'.'f."1`he door 7,2 itiwill be' seen is mounted uponagrock shaft 7 9havmg a crank arm A` 80 atrone end. Thisv rock shaft is mountedl'insuitable bearings in the, forward andrear wallsof: the magazine. Thelextremity' of the crank. arm: 80 1s con# nected to aspring 81whichimturn is conn cted to a 'bracket 82. Passing upward t rough thisbracket 82 isa rod 83 normally .forced upward by a spring 84 bearingagainst a collar 85 on the rod'.v 'This rod as illustrated in Fig.- 6 issqaisposezi in the receiver thatits upper/end is normally in contactwith one of the lugs 21 on 'the breech block, yand when the breech'blockis rotated in the direction of the arrow, Fig. 6, it will releasethe rod 83 and permit itto be'forced up by a spring 84." The lower endofthe rod 83 is connectedto vonearmiof abell crank 86, the otherarm ofwhich is piyotally connected to a 'rod87 which extends rearward throughthe receiver. The rear end of this rod is disposed adjacent to theforward end of the extension 45 ofthe trigger 35.-. When the triggerisreleasedV after firing, this forward extension 45 willrise and at themo'- ment that thebreech block beginsto rotate the rod 87 willv beforced rearward bythe' mechanism heretofore described and the rod 87will be inserted betweenl the lower face 'of the extension 45" and thetrigger plate',`

tion and 'preventing any rearward 'movement of-the trigger under pull.Ialso pro-` 'vide as means 'for locking the trigger, an angular cam lugor lock 88,' shown in Fig;

. thus locking the trigger inits lforward posi- 2, which is'pivoted uponthe trigger plate'at1 89.- ."The downwardly extending arm of thismember' projects below the'trigger plate-into.

position to permit the member to bel rotated `hold'this locking camffromany accidental 1105, vupon its pivot 89 so as to bring the camper.-ltion thereof to bear against the underfface' 45 of the trigger andmoveit upward andhold it insthis position. 'A spring 90 actstollt'will'be noted that as the cartridges faire ejected one by one from themagazineinto the receiver,the indicating wheel 58 will turn step bystep'andthe follower willrise vuntil it arrives at theupper end of themaga zineand the last-'cartridge has been forced into the receiver. In'order to provide means for automatically returning the follower to itsoriginal position immediately after the lastcartridge has beendischarged, Iv provide mechanism for releasing the pawl 67 fromits'engagement with the vwheel 60 and also locking the breech block andbolt intheir retracted positions until the magazine has' been refilledanda new cartridge inserted in- To this end, I' pivotally I' the openbreech. moua-it m the lower portlon of `the receiver the 'lever 91, asshown clearly in 2 and T. This lever 91 is laterally oset toward itsforward end, and is provided with the upwardly and forwardly extendingarm 92 formed with a hump 92a at its middle, and

. with an upward extension 92b extending forward at only a slightinclination. This arm is disposed in the path of movement of the lug 64so that when the wheel `58 has moved the lug 64 into engagement with thearm' 92,

the forward end of the lever will be deof the forward end of the lever,this lug 95 will shift the. pawl 6T out of engagement* with the teeth60a so as to permit a reverse or unwinding movement of the shaft 59 andof the wheels 60 and 58 under the action irai-ward position.

of the spring i9.` The rod 94: is also formed with a forwardly andlaterally projecting arm 9G whose forward end is adapted to engagebeneath the pawl when the breech block has been shifted to its rearwardposition, thus leaving the pawl free from the teeth 60a.- The rear endof the'breech'block is formed with the perforation 97 which registerswith the upper end of therod- 94eV when the breech hlokis in itsrearmost position and thus when the breech block shifts to its rearmostposition under the discharge of a. cartridge, and the forward end of thelever 91 has been depressed lby the engagenient of the finger 92 withthe lug 64, the upper end of the rod 91 which. constitutes a bolt' willbe shiftedinto this perforation .9T and lock the breech block in its h):.engagement with the lug G4. the loading door 9S which is disposed inthe side of the magazine is automatically opened .so as to permit theintroduction of new cartridges. This door is actuated b v the followingmechanism: The door 9S is mounted upona rock shaft 99 having a crank arml100. Pivotally caamected tothe forward end of the lever 91 is a link101. the lower end of which is bent to'an acute angle. as at 102. andpi'voted at 1.03 to. the crank arm 100. lVhen the forward end of thelever 91 is depressed, the arm 100 will be depressed and .the loadingdoor will be fully opened. Then the loading door is full;7 opened, thecrank arm will indre past its center. andthe door will be held open withthe extension 102 of the crank arm projecting outward.v

In order that the loading door 98 ma) be opened without the necessity ofwaiting for the last cartridge to be -ire d, 1 provide the llt the sametime that the forward end of the lever 91 is depressed metaal-ismillustrated in rig. 7, this methanisin also lockingA the forward end offthe lever- 91 yfrom any accidentalA depression.

Upon. a shaft 105 is mounted an erin-.106

having spaced laterally extending 107 and 108. The finger l'extend'sover the top of the arrnl92, while the 'linger' l108;

extends beneath the arm 92.' The linger 107 carries y a knob 109 which'projects' 'out through an opening in the receiver inconvenient'position to be manipulated by s the thumb of the operator. Itwill thus.- be seen that upon shifting the knob 109 -inone direction,the forward end of thelever 91 will be' depressed, thus. causing apartial opening of the door 98, after which the door may fully lifted byhand. Usually the forward.

end of lever 9'1 is held raised by spring 110. Arm 106 is also held inposition to urge the lever 91'upward by a spring 111. The lug 64 isangular to provide a shoulder 64 and a shoulder 64b. `Upon a dischargeof the last cartridge from the magazine, shoulder '64* strikes againstfinger 107 of arm 106, shifting arm 106 forward and compressingspring111 until finger 108 is moved from beneatharm 92. At this point,shoulder 64 clears finger 107 and shoulder' 64b engages` with arm 92,depressing the front end of lever 91. The moment shoulder 64b has fullydepressed the forward end of lever 91, pawls 65 and 67 swing clear ofteeth 60El and wheels 58 and 60 are urged back to normal position,withdrawing lug 64 from arm 9.2. The forward end of lever 91 is helddepressed because the angular terminal end 102. of llink 101 is past itsdead center, thus spring 110 cannot push lever 91 up. The

upward. extension 92h on. arm- 92' prevents linger 108 from catchingover end of arm 92 and so making it impossible to close the door 98.Door v98 may be snapped shut without shifting knob 109, and this willcause pawls 6.5 and 6T ,to be released by level' 91, shifting it to itsnormal position. Lever 91 will again be caught and heldby -finger of thearm 106 rearward and thus to carry.

the arm4 92 vertically. In this position the When the loading leo 108 onarm 1.06 -until it is again shifted for- '12s 'forward end of the lever91 will be locked 1 fronr any. accidental depression V,until the knob109 is deliberately shifted by thel oper# ator or until the, lug 64contacts with the exi vtension 92h.

`underfed'ge of the finger will act to shift the YVhen' this loccurs thecurved arm lO6=forward against the force of the -spring'111. Y

T-n case, the gun niisses fire, l provide means fory manually71retracting fthe breech block and breech bolt to vtheir firing positionland cooking-the hammer. Thismanuallyv actuatable meansconsists of a rod112 illus trated in Figs. 10 and 11 having its forward end bent to forma hookl 1131. The rear end ofthis rod passes through the rear end of thereceiver and carries upon'it a' collar 114 through which a pin 115loosely passes. @ne

vend lof this pin is provided with Aa knob 116 while the other end isprovided with a head' 117. Between the collar 114 and the head 117is-disposed a spring 118 which forces the pin downward in the collar-114so that the .knob 116 bears aga-inst the'collar in theposition showninFigs. 2 and 11. This pin with its spring vpasses through openings 119formed .in a prolongation 120 of the rear end of the receiver. The rod112 is many 'sided' A and .slides through an arm 121 to which a spring.122 is connected, this spring yieldingly resisting any rotative movementof the rod 112'. The breechblock is formed with'. an opening 123 inwhich the forward *end 113 of the rod 112r is adapted to engage.

Byfthis means a rotation of the ro'd 112 will initially cause a rotationof the breech block 'suiiicient lto release the. lugs 21 .from theirengagement with the lugs 22 and' then a rearward movement of the rod 112will draw the breech'block rearward and cock the hammer. "When thehammer has been cocked, the rod V112 is released therefrom permittingthe breechblock to return lto its initial position'and permittingtheg'un to.be againv vrfired.` Normally of course the spring holds thepin 115 in the extension 120 of the .receiver and in order to .cock thepiece it is necessary to pull out this pin 115 against the force of thespring until ithas cleared., Vthe extension 120, whereupon tie rod 112'as before described may be rotated and vretracted.

The general operation of my invention isi Vas follows:l When a cartridgeexplodes in the cartridge chamber, the recoildrives the breech' boltback, compressing vthe recoil spring 15. A s the' breech bolt is drivenback, the wide heavy threads' on the breechv bolt engage the similarthreads on the .in-f

side of the forward part of the .breech block 9. The pitch of thesethreads is relatively slowsov that the ,force of the explosion will bejust strong enough toforce the breech bolt back. Ars the breech boltgoes back, its threads cause,fthe cylinder or. breech block 9 to vturnone-eighth turn to the left and v thisbrings vthe lugs on the front endof the breech block in line with the paces between the lugs 22 on4thevinside 'of the.A receiver. VVhen`=.\these lugs on the breech blockare clear of the projections 22, the whole'breech block is free to moveto the rear end of the' receiver.- As the breech block goes back itcompressie the. two recoil springs'- 25', andA when th Abreech block isabout one inch from the rear of the receiver, it is `stopped by thewings 23 arriving at the ends the grooves 24.- The two recoil springsthen immediately pushv the breech block back in its place-in the frontof the receiver unless this breech block `is held from such movement bythe llocking. bolt 94. When the breech block reaches its-.\place at thefront end of the receiver the pressure of the two recoil springs 25 andof the inner recoil spring 15 lforces the breech-bolt forward relativeto .the breech block `and as it goes forward the threads 13 turn thebreech block one-eighthf'turn to the right. thus again locking thebreech block in vits closed position. At thetime that the breech blockis moving towardthe'rear end of the receiver it accomplishes threethings. It operates the cartridge lifting mechanism as previ-l ouslyexplained@ operates the ejector, 'and it cocks the hammer. The cartridgelifting mechanism. is actuated sufficiently to lift the top cartridge inthe magazine in line with Athe breechy bolt land the chamberA or barrelwhere it is held by the ejector lever 73 and to 'be fired. Thekautomatic action heretofore described is repeated each time that thetrigger is pulled, discharging the piece until the magazine is emptywhen Athe breech bolt is held open after the last shot is red lby meansof the. locking bolt 94. as previously explained. breech block engageswith one ofthe teeth ,60a of the elevating wheel-60, thehead 19 strikesagainst the ejector lever 7 swinging it toward the. rear end of thereceiver. This causes the operation of the ejector `in the mannerheretofore explained. As the ejector is placed slightly to the left ofthe middle lof the top ofthe receiver, the. stroke of the arm' 74 of theejector knocks the shell Jiist beforethe pawl 65 onthe to tlie'rightside of the receiverand down and out through the ej ecting passageway 7,The inner magazine lid 72 prevents the 'empty cartridge from fallinginto the magazine and also prevents the cartridges rn the magazire fromfalling out when the. rifle 1s turned `upside down. As long-as thebreech iso is at the rear end of the receiver, the ejector nger 74 isheld down at right angles to the top of the receiver but as its lowerend 1s a t-riiie to the right of the middle planeof the receiver, thereis room for' the lnext cartridge from the magazine to come of thereceiver, it shoves the hammer 2T' back until. the point on the frontend ot the hammer is shifted out ot the path of movement ofthe breechblock. It is then pushed back far enough so .that the tooth 31 can beengagedb),v the Sear l1. As the trigger is likelyv to be held rearwardat this time owing to the operator not having had time to release it,the Vfront end of the sear 4&1 is depressed so that it cannot hold thehammer but'the rear end ofthe hammer sear is raised and catches behindthe tooth 31 if the trigger has not been released. if this state ofaffairs occurs, then as soon as the trigger isI released therear end ofthe sear is drawn'down from in front of the tooth of thecollar 30 andthe hammer is pushed forward b v the spring '28. As the front end of thesear 41 is elevated, however. it will Aengage the tooth 31. The resultisthe same, therefore. whether the trigger `be drawn back at the. timethat the hammer is cocked or whether the trigger has been released. Asbefore explained1 when the last cartridge inthe rifle is tired. theelevating wheel is released and the spring 19 acts to return theImagazine follower to its initial position. The engagement of 'the lug6l with the finger-92 lifts the rear end of the lid opening lever 9.1.and this movement of the lever 91 accomplishes tour things at the sametime. First it Icauses the lid of the magazine to open wide. Tle link101 is curved so that with the help of the spring 101EL (see Fig. 7),the lower end of the link 101 will be lthrown downward andthenoutside otthe receiver1 when the lid is fullv open so that the lid 98 has to bepartly closed bv' hand before. the spring 110 can push the lmer on anempt)v receiver and '112 in a manner heretofore described.

teeth a on the elevating Wheel 60. Fourth, .the proJection 95 releasesthe pawl 67 from its engagement with the teeth 60 so as to leave thewheels 5S andfGO free to be turned backward to the original posit-ion bymeans ot' spring i9. l`

lt will be noted that this construction pre1 vents the operator tromsnalgipin'gthe hamprevents losing an)` time bj.' opening the magazinebreech bolt and lid by hand. The magazine lid being open and themagazine follower being in its lower position, the magazine is read)v tobe refilled with cartridges. vhen the magazine is filled. anothercartridge must be laid on t'op of the others and when the lid is closedit is pressed down between the other cartridges and the ton cartridge'Iin the magazine moves upward swinging the` magazine lid T). open and inline with breech bolt and tiring chamber. lf a cartridge were not laidon top and pressed between the others and so push the top cartridge upin line with the firing chamber` the breech bolt would close behind anemptychamber and it would be necessary to load the cartridge into thechamber by operating the rod 112 as previousljvv explained. vWhen themagazine door 9S is closed bv hand, the bolt. 91 is retracted. thuspermitting the breech block to return to its original position.whereupon the arm is again ready to be fired. Then the lid 98 closed andthelid engaging lever 91h; shifted to its normal position. the lidopening latch formed by the members 106 and 108 catches the lever againand the lever-cannot again be pushed down or the lid opened unless thelid opening catch above referred to is again pushed back either b v theknob 109 or bv the action ot' the lug 6l. it a cartridge misses tire, rit' the breech bolt is closed onl an emptvv chamber. or it' t'or anyreason it is' necessary or desirable to open the breech block b v hand.:t may be opened b v operating the rod It will be noted that. when thepin 115 is set in the pert'oraioiis 119. the rod 112 will be so turnedthat the angular extrcmi't \Y 113 will be out ot 'the wav' ot the movingparts ot the breech block. The moment that the breech block commencesyto turn to the -let'tto unlock las 'ineviousl llc-scribed. the'automaticsr .Q4 commences to push the autiii i plunger oirofl upward ffhich carythe rod Si to be pushed rearward into position beneath thetrgsrer arm-l-. lt the trigger is held back italic moment that the breecL bla-ek'unlocks iae wd .QT can not get armer the tri sa't'etv arm. but themoment the trigger lsed 'the rod S3 is pushed ..ipward bv the spring Sland the trigger isautouiaticallv ioctllied a gainst being pulled back. lthus provide two entirelv .parate safetjv rele.

.of chain.

catches, one the bar ,-787 and allied yparts be. ingV automatic in its"action and the other the 'cam 90 which is manually operated.

The flexible connection may vbelmade of any suitable material butpreferably is'made In order' to indicate the number of cartridges in themagazine, ythe chain might bemadeof links Vof various colored metals.Thus some of' the links vmay be made,` of brass, someA ofi-iron and someof nickel so that the operator' could tell how many cartridges were leftin the magazine byv looking tlirou'ghan opening 3a inthe bottom of thereceiver. As long as, for ii i. stance, the brass links would be inlView, he would know that themagazine was full vor nearlyso, but whenthe nickel links rcame into view he would know that the magazine wasnearly empty. Instead of having the links of different colored metals,however,

numbers corresponding withv the number of cartridges in the magazinemight lbe placed on the chain or flexible connection 50 at the properpositions,the vfirst number being 8 when there areseveii cartridges inthe magazine and one in the chamber, and soon down to. l indicating thelast cartridge.

'Tliesenumbers could ,be seen through the.

opening 3a.y Preferably, however, the indieating numerals'are placedupon the wheel l5S as previously stated.

In orderV to prevent small caliber .car-

tridges from getting into the grooves or spaces between the lugs andoutof linev the hand safet)7 device 90 is placed near the right hand edge.of the underside of 4the receiver so that there will be no danger ofaccidentall37 pulling the trigger vwhile operating this safety latch. A

lll aving thus described niv invention, what Tclairn is:

1. In a iii-carin. a vertically' disposed magazine. a verticallyvmovable vfollower therein, a flexible coiii'iection engaging .thefollower, a rotatable member on which the flexible connection is\vou,iid,'aiid means for rotatablv shifting said member a predetermineddistance upon each discharge of the firearm to therebf.v cause adischarge of cartridges from the magazine.

- In a firearm, a vertically. disposed inagaziine, a"verticall v movablefollower therein, a flexible connection extending for a portion of itslei'igth up the ,side of said magazine, rotatable members upon which'the oppositeends of the flexible connection are wound, mea'ns'yielding'ly resistingI the side of the magazine a predetermineldistance upon each discharge of the firearm Ato thereby/cause anintermittent 'discharge of cartridges froinfthe magazine.

3. In ai'irearin, a magazine, a movable 'followei-"therein, .a flexibleconnection .at-

tached to said follower, means for winding up said flexible connectionto cause the Afollower to-travel vthrough the magazine, and meansactuated upon a discharge ofthe'irearm for actuating said winding means.

4. In aA firearm, a magazine, a follower disposed therein, a flexible'connection operatively connected tothe follower, means for winding upone end of said flexible connection to cause the follower to travel inone direction through the magazine. and means resiliently resistingsaid. movement of the flexible connection.

5. In a firearm, a magazine, a follower disposed therein, aV flexibleconnection operatively connected tothe follower, means for4 winding upone end of saidv flexible con-` nection to cause'the follower to traveliii one direction through the magazine, and resilient means forretracting the flexible connection after the last cartridge has beenfired.

GfIn a firearm, a magazine, a followerv therein. a flexible connectionconnected to said follower. a coil spring operativelyY connected to oneend of the flexible connection and 'acting to retract the latter andresist its movement in a feeding direction, a shiftable member.operativelv connected to the other end of the flexible connection andadapted to shift itin a feeding direction, and means actuated upon adischarge of the firearm for shifting said member a predeterniineddistance.

7. In a firearm, a magazine. a follower therein, a flexible connectionoperativelyengaged with said follower, a ietracting spring operativel)Yconnected to one end of the ilexible connection and resisting itsmovement in one direction, a winding member operatively' connected t-othe other end of the flexible ioo iio

connection, and means for rotating said winding member for apredetermined distance upon each discharge of the firearm.

S, lii a firearm. :t niaga/.iiie having one wall thereof slotted. afollower. a flexible connection extending along said slotted wall andoperatively roiinecteil through the slot to said i'foilovfer. incansi'oriiinding up said .ile connection to cause a retraction of the follower,and means automatically :ictu- Macnee ated upon each discharge of thefirearm for winding up said flexible connection to cause it to travel ina feeding direction.

la ln an automatic firearm, a magazine having a rear wall, a flexibleconnection traveling parallel to said rear wall, a follower in' themagazine connected with said flexible connection and travelingtherewith, a winding wheel over which said flexible connection passes,and means actuated uponeach discharge of the firearm for rotating saidwinding wheel a predetermined distance.

l0. In a firearm, a magazine having a rear wall and a bottom wall, aflexible connection traveling parallel to the bottom wall and to therear wall, resilient means connected to the forward end of the flexibleconnection for retracting it, a winding wheel connected to the upper endof the flexible connection, a follower in the magazine operativelyconnected tothe flexible connection t0 move therewith, andmeans actuatedupon a discharge of the firearm for shifting said winding wheel apredetermined angular distance.

1l. ln a firearm, a magazine, a follower therein, a flexible connectionpassing beneath the magazine and then extending upward parallel to therear wall thereof` a coil spring operatively connected to the forwardend of said connection, a wheel disposed rearward of the magazine and towhich the upper end of the said flexible connection is attached, andmeans actuated upon a discharge of the firearm for rotating said wheel4a predetermined distance.

1Q. In a firearm, a magazine, 'means for elevating cartridges'disposedin said magazine and including 'a flexible element, a rotatable memberoperatively connected to said flexible element and whereupon theflexible element may be wound, a member driven rearward by the explosionof a cartridge. and a pawl carried by said member and operativeljfYengaging said rotatable member to shift ita predetermined angulardistance upon each discharge of the firearm.

13. ln a firearm, a magazine, a follower,

a flexible element operatively connected to the follower, awindingwheel. over which the flexible element passes, a toothed wheeloperativel)T connected to the winding wheel, a member disposed in thebreech of the firearm and rearwardlyT movable upon' a dischargethereof,'and a pawl depending from said member and adapted to engage theteeth of said wheel to shift the winding wheel through a 'predeterminedangular distance upon each discharge of the firearm..

1l. In a rearm, a barrel, a receiver, a`

magazine, a follower disposed in the magazine. a rotatable membermounted in the receiver, a flexible connection wound on said rotatablemember and operatively connected to the follower to elevate the latterupon an actuation of the rotatable member, a toothed wheel connected tosaid member, a breech block mounted in the receiver and rearwardlymovable by the discharge of the cartridge, and a pawll carried upon saidbreech block and adapted to engage said wneel to therebi...v rotate therotatable member through a. predetermined distance upon each dischargeof the firearm.

'15. ln a firearm, a receiver, a barrel, a breech block, a firing ninoperatively mounted in the breech block, a spring actuated hammer, saidhammer comprising a straight rod downwardly and rearwardly inclined andadapted when projected to engage said firing pin, a spring urging thehammer into a projected position, said firing pin having a head formedwith a downwardlv and forwardlv beveled face', said head beingengaged bythe hammer in its proiected posi tion, said hammer being engaged by thebeveled face of said head upon a rearward movement of the'breech blockand being thereby shifted out of the path of movement of said block, andtrigger actuated means normally engaging the hammer upon its retraction.

1S. ln a iirearm, a receiver` a barrel.; a rotatable and rearwardlysuhiftable breech block inthe receivera springresisting the rearwardmovement of the breech block. a breech bolt mounted in the breech blockfor reciprocating movement but prevented from rotation, aspringresist-ing the rearward movei'nent of the breech bolt, means forlocking the 'breech block in the receiver against rearward movement.said means being unlocked by an initial rotation of the breech block,and enacting means oii the breech bolt and block whereby an initialrearward movement of the `breech bolt will. cause a rotation of thebreech block to an` unlocking position to then permit the breech blockto move rearward to open the breech.

1T. 1n a firearm, a receiver, a barrel, a breech block mounted in thereceiver` for rotation and 'longitudinal movement, means yieldinglyresisting the rearward movement of the breech block, a breech boltmounted in the breech block for reciprocating movement, a springnormalljv projecting the breech bolt into the chamber bevond the breechblock. means interlocking the breech block with the receiver when thebreech is closed, means for preventing a rotary movement of the breechbolt but permitting its rearward movement independent of the breechblock and against 4the force of said spi-ing. and coacting means on thebreech bolt and breech block whereby an initial rearward movement of thebolt will act to turn the breech block through a predetermined angulardistance to tliercbvv unlock the breech block and permit its rearwardmovement to open the breech.

18. In a irearm,a receiver', a barrel, a breech block mounted in thereceiver and having radiating lugs, said receiver also having coactingradiating lugs. adapted to ,interlock withl the lugs of the breech blockwhen thelatter is in its closed position, av

breech bolt mounted Ain the breech block, means normally projectingthel` breechbolt beyond rthe breech block, 'coacting screw threadsformed upon the interior of the breech block and the extension ofthebreech bolt, and means permitting a rearward movement of the breech boltbut pi'eventing a rotation thereof whereby'to'cause a rotationalvmovement ofthe breech bloclg through a predetermined angular distanceupon an initial rearward movement of the 'breech bolt to thereby unlockthe breech block and to cause a predetermined rotation of thebreechblock in the oppositedirection upon a forward movement of the breechbolt.

19. In a firearm, a receiver, a barrel, said receiver having inwardlydirected spaced lugs at its forward end, a hollow breech block mountedwithin the receiver and. having outwardly projecting spaced lugscoacting with the lugs on the receiver to lock the breech lblock initsclosed position but permitting rearward movement of the breech blockafter the breech block has been rotated a predetermined distance, abreech bolt mounted within the breech block and slidable therethrough, aspring holding said breech bolt projected, means on the breech bolt forpermitting its rearward movement relative to the block but preventingrotation movement thereof, means yieldinglyurging the breech bolt andblock to. their forward positions in thereceiver, a firing 'pin disposedwithin the breech bolt, coacting means on the breech bolt and breechblock' "mer and including a trigger and trigger plate, and a triggerlocking member shiftable into position between the trigger plate andtrigger to prevent rearward movement of the latter upon the initialrearward movement of the breech lock.

21. In a iirearii, a receiver, a breech block rearwardly movabletlrrein, a hammer, a trigger coperating with the han'inier and includinga forward extension, a trigger plate upon which the trigger 'is mounted,a

reciprocatable locking rod shiftable intoengagement between theextension of the trigi tively connected to said rod to shift it, said'member being held from shifting movement in one direction by thepresence' of the Y breech block in its forward position.l

22. In a firearm, arf zeiver, a rotatably movable breech block, ahammer, a trigger operatively connected thereto and having a forwardextension, a trigger plate upon which the trigger is mounted, avertically movable -rod disposed in the forward end 'of the receiver,a'spring urging said rod upward, a bell .crank lever connected to thelower endfof the rod, -a locking rod connected to the other end of thebell crank lever and extending rearward to a point adjacent theextremity. of said 'trigger extension, and means carried by saidbreech.block for normally holding the first-named rod depressed when thebreech block is in locked position but permitting theV upward movementof said rod when the breech block is4 initially rotated to thereby`cause the projection of the locking rod between the trigger extensionand the trigger plate.A I

23. In a firearm, a receiver having a chamber, the forward wall of saidchamber having a breech block opening, said wall being provided withinwardly radiating spaced lugs, a breech block rotatably mounted in saidopening and' havingradiating spaced lugs coacting with the lugs on thewall of the receiver to prevent a rearward movementof the breech blockuntil said breech block has been rotated a predetermined distance, meansfor causing a rotation of said breech block and the rearward lmovementof the breech block upon the explosion of a cartridge, a hammerl` atrigger coacting tiierewith,l a locking member shiftable vinto. and outofA position to lock the trigger from actu-ation, and a spring-actuatedrod disposed in the forward end of the receiver and engaging with one ofsaid radiating lugsI on the breech block, said lug preventing an upwardmovement of the rod 'under the action of thc spring, said member beingoperatively connected to said locking, rod to causef'a 'projection ofthe locking rod into engagement with 'the trigger upon a forv-:ardmovement of the first-named rod when released by the retation of thebreech block.

g2-l. ,ln a firearii'i, a receiver, a barrel, a breech block mounted inthe receiver for rearward movement upon the explosion of :i cartridge, abreech bolt mounted in the breech block and normally projecting beyondthe same but'shiftable through the breech block, resilient cartritgeengaging members mozznted upon the forward extremitjvv of the breechbolt, and eject-ing devices lil() actuated uponthe' rearward movement ofthe breech block to engage the empty shell v gripping members.

and detach it' from said 25.1n a firearm, a receiver havingdownwardlyexten'ding side walls, an intermediate partition in saidreceiver extending parallel toV said side walls and defining on one sidea magazine chamber, and on the. vother side an e]ecting chamber, arearwardly ceiver above said chambers, a 'spring-actuated gate mountedupon said median'wall and normally extending upward and laterally overthe magazine chamber',"and ejecting devices actuated by a rearwardmovement of the breech block to push the empty cartridge in the breechlinto the ejecting chamber.

27. In a.- firearm, a receiver having downwardly extending side wallsand a median Ywall dividing the lower portion of the receiver into amagazine chamber and an ejecting chamber, the lower end of said'4ejecting chamber being open, and means actuated -upon a discharge ofthefirearm for ejecting the empty cartridge into said ej ecting chamber.

28. In a firearm, a receiver having a perforated rearward extension, abreech block movable rearward in said receiver upon the explosionof acartridge, a rod shiftable int'o engagement l.with said breech blockandlongitudinally movable to retract'the breech block, a pin movably'mounted` upon the rear end of said rod and formingahand'lev fortliejsame, and means urging said pin throrgh the perforation of thereceiver to thereby lock it to the said receiver.

29. In a firearm, a receiver, a breech block normally locked fromrearward movement but initially rotatable to unlock it from thereceiver, said breech block being then movable rearward in saidreceiver, and means for manually retractingsaidbreech vblock including'arotatable-rod having a finger at its forward end adaptedwhen thel 'rodis rotated, to engage said breech block and rotate it to anllnlockedposition, said rod being rearwardly' movable to retract -thebreechblock after it is unlocked.

'30.v In a firearm, a receiver, abreech' block therein rotatably andlongitudinally movabiein/ iiei'ecfei Tel to' rire ffhevbreecb; 'a

longitudinally extending Qd mounted in the :said breech block toreceiver and having a bent finger at one end adapted, when the rod isrot-ated, to engage initiallyy rotate it to permit a rearward movementof the breech block and adapted to lbe retracted to retract the breechblock, a collar mounted on the `end of the rod, Ia pin passing throughthe collar, alspringturging lsaid pin in one direction through saidcollar,'and an eXtension. on the receiver having perforation's throughwhich said pin normally passes to thereby lock the pinfrom rotation orlongitudinal movement.

31. In a rearm, a spring-actuated hammer movable in a straight line, atriggei,'a

pivotally mounted sear having teeth at both ends, a member on the hammeradapted tov be engaged by one or the other of the teeth,

aild an operative connection between the trigger `and said sear.

3Q. In a firearm, a hammer, a trigger, and

a hammer catch adapted to engage and'hold the hammer in a retractedposition whether the trigger is pushed forward or drawn to its i'earmostposition.

33. In a firearm,- a hammer, a trigger, a

sear pivoted at its middle andhaving retaining teeth. at each endprojecting toward the hammer,` an operative connection'between thetrigger and the sear whereby to oscillate the latter upon a movement ofthe trigger in either direction, and a member on the hammer adapted tobe engaged by one or the other of the teeth on the sear. v 34. In afirearm, a receiver, a breech block mounted in the receiver andrearwardly movable therein upon the explosion of a cartridge, adownwardly and rearwardly ex- `tending straight hammer, a spring urgingthe forward end of the hammer against thev rear end of the breech block,said hammerbeing movable to a cocked position by the 'rearward movementofthe breech block, a' pivoted trigger, a pivotally mounted sear havinga tooth at eachlend and operatively connected to the. trigger, andamember on the hammer adapted to be engaged by said `too-th to therebyhold thehainmer retracted.

'35, Ina firearm, a receiver, a magazine form-ingeJ part'thereof, afollower in the' magazine, a flexible connection connected to saidfollower, means for shifting saidl flexible connection in onedirectionto cause the iis` elevation of the follower upon each eXplosionof a cartridge, and means for automatically causing a retraction of;said flexible connection when the last cartridge in the 'magazine hasbeen exploded.

36. Ina firearn'i, a receiver, a magazine forming a part thereof, aflexible connection,

spring-actuated winding means disposed at one end ofvsaid'fle'xiblevconnection, w'inuing means disposed at theother end ofsaid flexibleconnection and .actuated to wind up said flexible connection thereonYupon the ex'' plosion of a cartridge, avfollowerain: theV ing, afollon'f'er in said magazine,` means actuated upon eacn' discharge ofthe irearmx for causing an upwardv movementof the follower through vav)Laredete'rmi'ned distance,

land lmeans Vactuated upon the.dischargey of the last cartridge inv saidmagazine for opening the magazine door,

38. In a lirearni,y ay receiver includingv a magazine havingadoonopening, a door'. normally closing said opening, a breech block in thereceiierzmo'v'able rearward 'upon tbe explosion of a'- cartridge, meansactuatedl lanon the explosion fra. Cartridge fof "feed" ing a newcartridge ,from `thefinagazine into position before the breech-block,land means actuated bythe explosionv of the last'lcar tridge from themagazine, for opening saidV doorfandlocliing tlie'bjreechi block'in aretracted position.

` 39. In la firearm, '.afreceiverjncluding ay magazine, a follow'e'rinthe magazine, a

` wardly therein upon'the explosion of a lcarbreechv block inthereceiver'moVable'reartridge, a eXible connection operatiVelylconnected tothe follower, a spring winding means operatively ,connectedtothe forward-- end of" the flexible connection, a' winding"k wheeloperatively 4connectedto the rea-fend' ofthe fieXible connectionand/disposed' rearward of the lupper endfof the"inagazine,. means',actuated upon rearward.. movementE "of the 'breech blockjforfrotating'the'wind ijng wheel ay predetermined distance to'causetheej-ection of ay cartridge'in'tothe breecli',

locking means normally preventing uiiwi'ndy ing movement off saidwindingv v wheel," 'and means actuated, upon-"the explosion ofthe lastcartridge from they magazine for 'releasingsaid `locl1ng"means to:permit the spring-actuated winding mean? to *retract the iieX'ibleconnection and thexfollower", s aid means simultaneously lociingf tlrevbreech b'l'o'cl; in a retracted position.

` 40; In a i'rearm, a'receiver, a magazine, 'a

breecl'i block movable rearwardly `upon the ex'plosion'of'a cartridge,;afollower! in the magazine, 'means for'jc'fausin'g 4a step byst ep'upward nio'ementof'tlieffollonr upon the' explosion of; eacli cartridgeand tlie* corre- Spending rearward'mo'yement'of the breeclr'- block,andy means'for returning the follower# magazine door.-

inname to `its initialposition upon the vexplosion of the last cartridgefrom the magazine.

41,1n afre rm, a receiver; a magazine, a breech; 1gblockovablerearwardly' upon the enplosonof `a; cartridge, a follower in themagazine, means for causing a step by step upward movement ofthefollower upon the.

explosionv frfeach` cartridge and the correspondin'g' rearwardmovementof the breech block, means 'for .returning the follower` to itsinitial position, uponv the explosion of the last cartridge fromthemagazinefa loading doorto-the magazine, and means for 'causing anopening'rnovement of the'loading'do'or upon the n'ring of said lastcartridge from v the.` magazine;

42.^1n,a. firearm, a jreceirer, Va -magazin-e, af breech block movableyrearwardly upon the yexplosion o f the cartridge, aloading 'door to-the magazine, and means for, lock.

ing thelbreecli blockin aretracted position'. afterthe explosion'of acartridge until 'said door is closed.v y 'i j Ina firearm, a receiver,a' magazine, a breech blockV movable rearwardly upon ltine eiiplosion ofthe cartridge, means for feeding cartridges from themagazine upon eachactuation of the nrearm, 'a maga-zine door,

-m'eans' for causingthe magazine doorlto automatically-open upon theexplosion of thelastcaijtridge fromI .the magazine, and

meansforlockingthe breech block'in a re# tracted Aposition caused by-thedischarge of said 'lastcartridge and holding insuch lockedfvpositionuntil the .closing ofthe 4r-111 a firearm, a receiv'er,a magazine,

e. breech-'block ymovable rearward-ly upon the explosion 'of'.ac'artridge,-a,follower in the' magazine, means 4for vcausing-av step bystep f upward, movement ofthe followerupon the eiplosion 'of 'eachcartridge l'and ay .correspondin'g" rearward movement of the breechblock, means--for automatically',returning tlie; foljlower'toits initial'position .upon the explosion of the last `cartr1d ;e"from'tliemagazine, a loading/door to tbe inafgnzine,4v means for causing anopening movement" of the loading door upon the ring of said lastCartridge froniwtlief'inagazine and for simultaneously engaging thebreech blockto"h'old' it in itsaetracted position until' the loadingdooris closed. f

"lfn' a' firearm, a recei'wer, a magazine,

,a"bree`cli blockl movablev rearwardly upon the explosion offacartridge, a follower in 'tlieniaga'zine alwindingfwheel, av flexibleconnection engaging, the' follower and' passeI ingorersaidwinding?wheel, means 'on the breech blockopferatixielv engaging thewinding uf-lieelito' rotatev it a "predetermined distance.upon` tlie f'rearwardy rmovement the .biee `cl1 block, means resiliently resistingnecti'on, means for locking the winding; wheel from reversel movementbut p'errr'i'it ting thewinding movement thereof,'and

means actuated by the firing of the last cartridge from the magazine forreleasing the holdingmeans engaging said Winding wheel-to thereby permitthe return of the winding wheel to itsoriginal position'and forautomatically locking the breech block inits retracted position.

46. In a firearm, a receiver, a magazine,

a breech block movable vrearwardlyupon'v the explosion of a cartridge, adownwardly and rearwardly extending "p awl `on the engaging saidfollower and extending up the rear wall ofthe magazine, al winding'wheel connected to the rear end ofthe flexible connection, meansadapted to be engaged by said pawlfor causing a predetermined movementof thejwinding wheel to thereby Wind up theflexible connection, a

' pawl holding said Winding wheel front-refv l on :the breech .block tolhold it.v out of eii-l lower step 'by' step through the magazine,

verse movement under the lforce of the spring-actuated means, a magazinedoor,

al vertically movable member adapted to' engage the breech blockwhentlie latte-r is retracted tohold `it in reacted position,

-said member adapted to en, ge theholding pawl to. releaseit from itsengagementvxvith the 'winding wheel and said member having aprolongation 'adapted to engage the paw-l gagement `with '.tlieWindin-gwhee1, and

means actuated 'by tlie firing. of tlie'last",

cartridge from'the mz'igazine for forcing said. member upward to lockvthe-breech block, unlock the Winding Wheel and shift .47. Ina-firea'rm, a` receiver, magazine, -1 j adoor closing the lower portiono'rf the niagazine,a rearward-1y lmovable breech block, a wheeloperativelyxengagedjby saidbreech f 'block `upon its rearward movementto .thereby rotate itv apredetermined degree, aleveroperativelycoinectedjto fthedoor, and a member mounted on thewheelqandlengagf,

. ing 'said `lever .to rotate-fthe door to ariopen Apositionafterthewheel hasnfiovedaprey I y K 'L ftion from the winding drum, andmeans coacting with thel Winding wheel for indicat-- l 48. In a firearm,a.v I

'a door closing` thel'ower" portion of the mag- 1 determined degree..V

receiver, a magazine,`

azine, a rearwardly movable breech block,

a wheel operatively engaged by saidbreech block upon its rearwardmovement to therebyrotate it-a predetermined degree, a lever,

a breech block loc'king device operatively `:.prmg-actuated lwindingmeans connected y c'onneded to saidlever and'movable into engagementwith the breechblock when the anld'means won tbewh'eel for engaginglsaid lever to shift it after `the said" wheel moved apredeterminedamount.

vhas

y 49. In a firearm, a receiver, amagazine,l aj

azine, a rearwardly mc'iv'al'ilev breech block, a wheelo'perativelyengaged by said breech block upon its rearward movement tothereby rotateI ita predetermined degree,a lever operatively connectedto the door, a member -m'ountedgon the wheel andfengagingf said lever torotate the vdoor fto'anopenposition after the wheel has moveda-predetermi'n'ed degree, and manually operated 'means for door. l

50.' Ina firearm, a' receiver,"`al magazlne,

j manually `shifting saidlever to -open .the

operatively' connected to the door, a member mounted on the'wheel andengaging said lever to rotate tl'iejdoor to an open positionA after thewheel has moved a. predetermined degree, and manuallyoperated means forlockingthe leverf-rom movementor shift- :ing the lever to operi thedoor. l I

51. Inl a firearm,V avertically disposed .door closing the'. lowerportion of the-magmagazine, a verticallymovable followerl therein, aflexible'connection operatively en! gaged with said-follower', saidconnection extending for a portion of its length par allel to thefside.W'all ofthe magazine, means for giving saidA HeXibleconnection-a stepby step Vmovement to thereby'elevate the foland` means foi-indicatingvthe degree to which said flexiblev connection has beeny elevatedtotliere'by indicate the number of cartridges 'in tliemagazine.

52, In 'a firearm, 'a vertically disposed"y magazine, a. followermovable therein to ward the i'ipperend of the magazine, a flex-4ible/connection attached' to 'said follower, y

aspring actuated winding drum over whichv one i end of the flexible'connection `passes, awinding wheel' overvvhicli the other end of vtheflexible connection passes,. means forshifting the'wiiiding lwheel apredetermined distance. upon'the'explosion of each cartrid-g'e tothereby unwi'ndthe flexible coniiec-l ingthe position 'of the followerin' th ma gazine'. V

p 58- In a firearm, a receiver, a magazine forming a part of thereceiver,'a follower' therein, a flexible connection having a ver ticalstretch connected to said follower, a

to the lower end of said connection, an au-o- 14 ,l y' y ,j V1,126,726., Y. A

a breech block ,(i-sloseelfiilfheieceiirer :ind i ',said ysidefopeniliganni indicating 10` movable renrvs'ardupon vthe explosion, of' athefnumber,ofeartridges yin'the magazine cartridge and. adapted -tooperativelyengage :1t/,any time. n u v y l'said Winding Wheel v.torotate it4 a predeter- :In testimony whereof I affix my signature mineddegree upon each. reqrwardn'ovein presence of;.two Witnesses. ment ofthe breech block, the receiver being .FREDERICK A. DIESTELKAM'P;

provided with aside opening and-fthe ad- Y vVitnesses:l i

' joining face yof,4 they windinglwheel Abeing C. F. TEMPLE,providedfxvlth a,.v=ev'1ee of numeralsvvislole.` MQL STURGES;

